product description: A: Bottom of converter: Compatible with Makita BL series 18V Li-ion battery; Top of the converter: Compatible with Bosch BAT series 18V lithium battery power tools; [Bosch power tools must be compatible with BAT622; BAT609; BAT618G; BAT609G; BAT618; 2 607 336 170; 2 607 336 092; lithium-ion battery models] Bottom of converter Suitable for Makita battery models: BL1815 BL1815B BL1820 BL1820B BL1830 BL1830B BL1840 BL1840B BL1850 BL1850B BL1860 BL1860B BL1845 BL1890 BL1890B, 18V lithium battery... Makita 18V lithium battery is converted to Bosch (Bosch) 18V lithium battery tool, through this converter, you can use Makita (Makita) 18V lithium battery for Bosch (Bosch) 18V lithium battery tool, let your Makita (Makita) The 18V lithium battery shares the battery with the Bosch 18V lithium battery tool. Support Makita (Makita) 18V lithium battery and Bosch (Bosch) shared charger through this converter Compatible Bosch charger models: AL 1814CV; AL 1820CV; AL 1860CV; GAL 1880CV; GAL 18V-20; GAL 18V-40 B: Bottom of converter: Compatible with Bosch BAT series 18V Li-ion battery; Converter top: Compatible with Makita BL series 18V Li-ion power tools; [Makita power tools must be compatible with BL1815 BL1820 BL1830 BL1830B BL1840 BL1840B BL1850 BL1850B BL1860 BL1860B, 18V lithium-ion battery models] The bottom of the converter is suitable for Bosch (Bosch) BAT series 18V lithium battery: BAT622; BAT609; BAT618G; BAT609G; BAT618; 2 607 336 170; 2 607 336 092; Convert Bosch 18V lithium battery to Makita 18V lithium battery tool, this converter can use Bosch 18V lithium battery for Makita 18V lithium battery tool, let your Bosch The 18V lithium battery shares the battery with the Makita 18V lithium battery tool. This converter does not support Bosch (Bosch) 18V lithium battery and Makita (Makita) shared charger